Please use this identifier to cite or link to this item: https://doi.org/10.1103/PhysRevLett.107.080501
Title: Perturbative quantum error correction
Authors: Bény, C. 
Issue Date: 16-Aug-2011
Citation: Bény, C. (2011-08-16). Perturbative quantum error correction. Physical Review Letters 107 (8) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevLett.107.080501
Abstract: We derive simple necessary and sufficient conditions under which a quantum channel obtained from an arbitrary perturbation from the identity can be reversed on a given code to the lowest order in fidelity. We find the usual Knill-Laflamme conditions applied to a certain operator subspace which, for a generic perturbation, is generated by the Lindblad operators. For a weak interaction with an environment, the error space to be corrected is a subspace of that spanned by the interaction operators, selected by the environment's initial state. © 2011 American Physical Society.
Source Title: Physical Review Letters
URI: http://scholarbank.nus.edu.sg/handle/10635/115229
ISSN: 00319007
DOI: 10.1103/PhysRevLett.107.080501
Appears in Collections:Staff Publications

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